Pieeee ambjoktf



(No Model.)

P. AMBJRN. Manufacture of Paper.

No. 241,522. Patented May 17,1881.

UNITED STATES PATENT OFFICE.

PIERRE AMBJRN, COMTE DE SPARRE, F PARIS, FRANCE.

MANUFACTURE oF PAPER.

SPECIFICATION formingllpart of Letters Patent No. 241,522, dated May 17, 1881.

Application tiled January 17, 1881. (No model.) Patented in France September 18, 1880.

To all whom it may concern:

Be it known that I, PIERRE AMBJRN, COMTE DE SPARRE, of Paris, France, have invented a new and useful Improvement in the Manufacture of Paper, of which the following is a specification.

My invention consists of a new system. ot1

manufacturing paper, iigured or not, the said system founded on the employment of special forms of paper. y i

My system of making figured or plain paper consists in the employment of frames joined together by hinges, forming an endless chain, which replaces the endless wire-cloth which, up to the present time, has been employed for making paper. r

In order to make my invention clearer, I have represented the same by figures, which correspond with those on the drawings annexed to this specification.

B D correspond to that part of an ordinary paper-machine which works from the cleansing of to the separation of the cloth.

As I shall speak more at length, the ordinary wire-cloth is replaced by the frames or boxes A- A, united by the hinges df, Fig. 3,

Vwhile the pivot is provided with a wheel, d,

Figs. 3, 2, 1, which passes in a circular groove around the structure m m, so that when all the frames are joined together they will form an endless chain around it. Upon these frames the desired forms of paper are placed, as I shall describe hereinafter.

When the pulp reaches the reiner on the for'm it is found in ahorizontal position and in direct contact with the part next it, producing the same surface as the wire-cloth, owing to the disposition of the hinges, which are fastened in a horizontal plane and openly passing round the semicircle at each end of the structure, the paper being formed in the ordinary manner between the two india-rubber bands b, effecting its transverse trembling, owing to the clutohesc c, Figs. 1 and 2, which are in theforln of an inverted U, which communicate by the crank O with an eccentric, and under which `slides the toothed rack moved by the cog b.

Passingnnder the cylinderf, the paperis raised up by the cloth or felt Fi g.l, and the water is extracted by the exhaustion of ordinary air g g, Fig. 1, after which it passes into the press-v ure-cylinders 71, 7L, Fig. l, and dries while passing over the cylinders t' i to the cylinder 7c.

In order to avoid waste and to 'adapt the frames to any different size of form which may be required, these frames are made in such a Way that they can be shortened or lengthened separately, owing to the slides p p, Fig.3, which are longitudinal,'and owing to the contraction and expansion of the rubber rollers in a transverse sense. As this lengthening and shortening longitudinally changes the total length of the endless chain, the structure or frame Work is made of leaves E F, in order to adjust the tension of the endless chain. l

The cloth after the paper leaves it at the cylinders h h, rises to `be washed, passing through the vat l, filled with water. Then the excess is squeezed out by the pressure of the rollers Z' l', and it redescends to raisethe new paper. y r

The frames which compose the endless chain may be of a fixed size for the form required, as Grand, Eagle,7 Jsus, or of a variable size, for the uses required.

A A' A, Fig. 3, is a frame of variable size. c c are the racks, composed of two halves, in a longitudinal sense, able to be lengthened or shortened in the same manner as the slides p p, on which rest transversely the bars q q q supporting the frame. These frames are jointed, as at d', and on their prolonged axis is placed a wheel, which slides a little on its axis, permittin g the frames to make the transverse trembling, owing to the clutches, (of which I shall speak more at length,) without which the structure is not effected.

The special forms of paper, figured or not, which I employ consist of ametal plate engraved in the same manner as the casts for lithography or china transparencies, and after it has been struck off in a vertical sense on one side and ahorizontal sense on the other :as far as the surface extends, it is covered with a metallic cloth previously embossed by a graver, hav- 9 5 l'OO it is supported on all sides without any other base, permitting the cloth to take a nish unknown in the manufacture of paper at present. N This is how I obtain these forms.

When I desire to produce a plain paper I take a metal plate of conveuientsize-say ten millimeters, or leven lessand I cut with a rough instrument or a saw into one surface grooves of alittle more than half the thickness. I then return it to the machine, and I cut in the other surface transverse grooves equally, little more than half the thickness, so that the two operations will have produced as many square holes as there are crossings of the grooves. If then it is wished to make a form of paper after my system, it may be done by hand or by machine.

For laid paper itisnot necessary to cover the form with metallic cloth, for the grooves of the plate will produce that effect; butif itis wished to make even-surfaced paper, then cover the plate with the cloth and attach them together at the edge by solder or in any other manner, but when I wish to produce atigured paper, as notes and bonds, the process is much more complicated. lt becomes necessary to make a modelin wax orsome analogous material which is transparent. This modelis graven into steel, which is tempered and struck in that mold so as to form a reverse stamp in steel, which is also tempered. In this reverse stamp is struck in bronze or other metal a medal, which is an exact copy of the model in wax. Then press lightly and with care a metalliccloth upon the two stamps in steel, when it follows that the cloth, having been pressed in the same stamp as the medal, corresponds exactly with the surside of the medal in one direction and on tueA other side in transverse direction, in order to produce a plate on the surface, as I explain herein.

In Fig. 4, G, H, and K are the plans andthe two side views of a plate cut in that way. tis the side with the grooves cut much ner than those of the other, a. These last are cutin the form of a T, in order to permit the introduction of the head-screws for attachment to the frames A and A', Fig. 3.

A is a frame with the transverse bars qq q placed on the longitudinal bars p p p, capable of being` lcngthened or shortened.

A is a frame covered with different forms of paper placed in juxtaposition, as in the case of a printing-press, and attached on the under side to the transverse bars by the clamps. d d are the hinges which hold the frames, and d d are the springs.

I claim as the principal character of my inventionl. Theconstructionand employmentof movable frames forming an endless chain, hereinbefore described, for the manufacture of paper, figured or not.

2. The construction and employment of forms for paper which may be iliade by hand or 

